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In this tutorial we are going to look at Project Lombok. If you haven't heard of Lombok before you are in for a treat. This awesome project makes it easy for us to reduce boilerplate code in our Java projects. The Spring Initializr even has an option to include this as a dependency so there is no reason you shouldn't be using it today.
Project Lombok: https://projectlombok.org/index.html
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Angular 4 Java Developers: http://bit.ly/2p0Fbbq
In this lesson, we take a quick a quick look at how to add Bootstrap to your Angular project. This is a pretty simple process once you know how to do it. I hope this helps someone out there and if you would like to see more Angular lessons please let me know.
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In this tutorial we are going to look at how to send emails in Spring Boot. Sending Emails is a critical component of most web applications. The setup can be somewhat time consuming in normal Spring Applications but because of Spring Boot's starters we can be sending emails in minutes.
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Learn Spring Boot 2 http://therealdanvega.com/spring-boot-2
Spring Boot 2 was just released and I am so pumped to see it in action in the coming months. This release is the culmination of 17 months of work and over 6800 commits by 215 different individuals. There are some really great features to talk about so let’s talk about What’s new in Spring Boot 2.
Some of the new features that we discuss in this video are:
- Spring Framework 5
- Java 8+ Baseline
- Spring WebFlux
- Third-party library upgrades
- Spring Boot Actuator
- Reactive Spring Data & Spring Security
- Gradle Plugin
- Simplified Security Model
- HTTP/2 Support
- Relaxed binding in Configuration Properties
- Metrics
- Quartz Scheduler
- Kotlin Support
- JUnit 5
- Spring Boot 2 Migration Guide
If you're interested in reading my full write up on this please head over to the link below!
http://therealdanvega.com/blog/2018/03/01/what-is-new-spring-boot-2
If you are new to this channel please consider subscribing to be notified when my next video comes out. If you have suggestions for tutorials that you would like to see please comment below.
Thank You
Dan Vega
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In this tutorial we are going to look at batch image resizing in PhotoShop CC. I just got back from vacation and I want to share some of my images from DSLR camera. When I touch up these images in Lightroom they come out about 5500 pixels wide which is just way to big to be sharing on Facebook, Instagram or even my own website. I don't want to open up 30-50 images individually and resize each one because I don't need them to be a specific size. I just want them smaller and Image Processing in Photoshop will help us do that.
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In this lesson we are going to learn all about Primitive Data Types in Java. We are going to look at the different data types available in Java.
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A few of my students have been asking this question lately so I thought I would share it with you. The question had to do with Tomcat being the default servlet container in the web starter dependency. If you wanted to use another container like Jetty is that possible? The answer is yes and in this tutorial I will walk you through that.
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I had a student in my Spring Boot Course ask me how to use the H2 databases console. In this tutorial, we are going to build a Spring Boot Application from scratch. From there we will create an Entity and configure our H2 database properties. Finally, we will launch the application and see the H2 console in action.
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A quick how to use spring security in a new grails application. In part 1 of this tutorial we will install a new grails app and install the spring security plugin. We will also create some test data which we will use in part 2.

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In this tutorial we will look at upgrading Java on Mac OS X Yosemite. As developers it is important to note the difference between the Java Runtime Environment and the JDK. In this screencast we will update from 1.7 to 1.8 (JDK 8) but most upgrades should be very similar.
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In this screencast we continue our Grails 3 Introduction and look at creating and running your first application. We talk about how to create your first application and the different options you have when doing so. We also look at some of the command line features that Grails interactive mode gives us as well as importing your new application into IntelliJ and running it. This is a great starting place for those new to Grails 3.0+ or those brand new to the Grails Framework. Below are some links for things we talked about in the presentation. Please support this channel by subscribing and if you have any feedback I would love to hear from you.
Grails Download Docs:
https://grails.org/download.html
GVM Screencast:
https://youtu.be/58qcl-ExI6M
GVM Tool:
http://gvmtool.net
Grails Web-API Profile:
https://github.com/grails/grails-profile-repository/pull/10
IntelliJ:
https://www.jetbrains.com/idea

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If you are an IntelliJ user I have a great tip for you. Live Templates are a great way to become a more productive developer. In this lesson, we are going to create our own Spring Boot Template Group and our own Live Template.
Live Templates: https://www.jetbrains.com/help/idea/2017.1/creating-and-editing-live-templates.html
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I had a student ask me recently about how to secure REST endpoints. There are a couple approaches to this but Jwt seems to be a little bit quicker and easier to implement. I put together a quick demo based off of an awesome project I found on github.
REST Security with JWT using Java & Spring Security
https://www.toptal.com/java/rest-security-with-jwt-spring-security-and-java
Jwt Spring Security Demo
https://github.com/szerhusenBC/jwt-spring-security-demo
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In this tutorial, we are going to learn how to safely remove elements from an ArrayList in Java while using a for loop to loop over that same list.
The other day I was using a for loop in Java to loop over a collection. Inside of that loop, I was evaluating each element to see if it met some criteria. If it did meet that criteria I wanted to remove that element from the collection.
Each time I tried to remove the element Java would throw a concurrent modification exception and my program would fail. There is actually a really good reason this happens. If you understand what is happening underneath the hood when we use a for loop it all makes sense. We are using an iterator to loop over the collection while using the collection to remove the element and this never updates the iterator to say "I removed an element".
In this tutorial, we will look at one way to solve it and then an even easier way to fix this problem. In Java 8 a new method was added to the collections interface called removeIf. This method takes a predicate and makes it super easy for us to remove items from a collection if they meet some criteria.
I really hope you enjoyed this tutorial and if you did please let me know what other tutorials you might enjoy seeing. Please Subscribe to this channel and leave a comment below.
Thank You
Dan Vega
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HikariCP is a “zero-overhead” production-quality connection pool. It is the fastest JDBC connection pool around and in this lesson, we are going to walk through how to use it in your next Spring Boot Project.
https://brettwooldridge.github.io/HikariCP/
http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#boot-features-connect-to-production-database
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In this lecture we are going to look at the differences from a Java class to a Groovy class. If you have never written a single line of code in Java it is still good to see how much less code you use in Groovy. For all of you Java pros out there if this is your first time seeing this it can be an eye opener.
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I really do love my IDEs but there are times when I need something fast & lightweight editor with some of the power that can be found in an IDE. I have been using Visual Studio Code a lot lately and one of the features I really like is tasks. Tasks allow us to integrate with external tools to automate actions like building, packaging, testing and deploying software.
I decide to sit down and create a screen cast about how to create and use tasks in Visual Studio Code. In this example I am integrating Visual Studio Code with the Spring CLI. If you have never used Spring Boot don't worry about it. We still learn the basics of how to create and run tasks from the editor. This is a perfect example of a tool I use on the command line but hate going back and forth to from the editor. With tasks I can connect them both and stay productive in my text editor. I hope you enjoy this tutorial and if you enjoy it please like / subscribe and comment. I want to keep writing & creating tutorials and your feedback means everything to me.
Visual Studio Code Documentation
https://code.visualstudio.com/Docs/editor/tasks
Github Repository of Visual Studio Code Tasks
https://github.com/cfaddict/vscode-tasks

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Have you ever been watching a demo or presentation and saw someone launch IntelliJ from the command line? Do you want to be able to do that as well? If so this lesson is for you. We look at how to create a command line launcher in IntelliJ so that you can open up your projects from the command line.
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In this tutorial, we are going to look at what you should be learning as a Java Developer in 2018.
Java Development Mind Map in 2018
https://coggle.it/diagram/WqgTTNMJtPiHph_q/t/java-development-in-2018
Learncode.academy Front-End Developer in 2018
https://www.youtube.com/watch?v=gVXcqO9A1vo&t=523s
This project started out as a really simple fun exercise for me. I wanted to get a list of what I thought Java developers should be learning in 2018 depending on their career path. That simple project I started has grown into the huge mind map that you see today. I just kept finding a reason to create another node or drill down even further.
When looking at this list I really want you to keep a couple of things in mind.
When you see this large list of technologies please don’t let it scare you off. This is not a “you should know every single one of these” lists. It is just what I believe to be relevant in 2018. That last part is important, what I BELIEVE. I don’t know everything and I want this to be a fluid list, if you think I should add something to this list please let me know in the comments below and why and I will add it the mind map.
Different sections of this screencast
Core Fundamentals (3:10)
Basic Web Development (6:30)
Advanced Front-end development (9:20)
Java Language (16:00)
JVM Languages (22:50)
Mobile Development (23:55)
Framework, Libraries & Tools (25:00)
DevOps (35:00)
Resources (40:55)
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Check out my JHipster Course http://therealdanvega.com/jhipster
In this tutorial, we are going to look at how to work with JHipster in Development mode. If you want to make changes to your HTML, CSS and Typescript files you can't just fire up your Spring Boot app.
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In this tutorial I will walk you through how to copy an event on Eventbrite. There are many times where you just need to update some details from a previous event and you don’t want to have to start from scratch.

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In this tutorial, we are going to look at how to read JSON data in a Spring Boot application and write it to a database.
Source Code:
https://github.com/cfaddict/spring-boot-jsontodb
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In this tutorial we look at what happens when you just paste in a bunch of Java code. If the IDE doesn't understand what classes you are trying to use then we need to import them. IntelliJ gives us some great tools for making this super easy to do. We are going to discuss some options and I will show you my tip for automagically importing classes.
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In this tutorial we are going to look at query creation on Spring Data JPA. We know that when we extend the CRUD Repository interface we get some methods out of the box such findAll, save and delete. What happens when you want to start creating custom queries though? In this tutorial we will look at that exact scenario.
Source Code: https://github.com/cfaddict/spring-boot-intro/tree/master/data/advqueries
Spring Data JPA - Reference Documentation: http://docs.spring.io/spring-data/jpa/docs/current/reference/html
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In this video we introduce you to my favorite IDE IntelliJ IDEA. We are going to open this for the first time and talk about how to use it to write groovy scripts and programs.
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A student asked me the other day what a Command Line Runner was and when can we use one. If you watch demos of Spring Boot features or applications you have probably seen this and said to yourself “What the heck is that?”.
If you take a look a look at the API Documentation for Command Line Runner you will get this elegant explanation.
"Interface used to indicate that a bean should run when it is contained within a SpringApplication. Multiple CommandLineRunner beans can be defined within the same application context and can be ordered using the Ordered interface or @Order annotation."
In this tutorial, I will explain what a Command Line Runner is and how we can take advantage of it in our applications.
Command Line Runner Blog Post
http://therealdanvega.com/blog/2017/04/07/spring-boot-command-line-runner
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This is just a quick demo on how to connect to a MS Sql Server database. In this screencast I will show you how-where to download the JDBC driver needed for the connection and how to setup your project in IntelliJ. We will breifly look at the groovy.sql package which will be your main API for connecting executing statements against your db.
JDBC Driver
http:--www.microsoft.com-en-us-download-confirmation.aspx?id=11774#

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In this tutorial, we are taking a look at a student's question from my Spring Boot Introduction Course. We might not realize it but when we start a new project we are selecting how we want to package this application when we ready to go live.
I recently received the following question from a student:
In the real world, an application will be deployed to an application server like JBoss. How can the application be wrapped into a war file and deploy to the application server?
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In this tutorial we will look at a couple different ways of hiding desktop icons on Mac OSX. We may want to do this just while creating screencasts or maybe remove them permanently. Either way I have 2 real easy solutions here for you.
command: defaults write com.apple.finder CreateDesktop false
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In this tutorial we are going to look at query creation on Spring Data JPA. We know that when we extend the CRUD Repository interface we get some methods out of the box such findAll, save and delete. What happens when you want to start creating custom queries though? In this tutorial we will look at that exact scenario.
Source Code
https://github.com/cfaddict/spring-boot-intro/tree/master/data/advqueries
Spring Data JPA - Reference Documentation
http://docs.spring.io/spring-data/jpa/docs/current/reference/html/
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In this episode, we look at a question from a student in my Spring Boot Introduction course. When we have different profiles for development and production how can we access those properties in our configuration classes? We look at a quick example and talk through some of the ways to solve this issue.
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In this tutorial we are going to look at how you can update your local development version of JHipster.
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This is a tutorial from my new course "Angular 4 Java Developers". I am sharing an entire section with you and all of these lessons will be in a playlist for you to follow along.
In the last lesson, we used some static data to make our Angular service work. We are going wire up an Angular Service to reach out to our Spring Boot application to fetch the data.
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In this short tutorial we are going to look at a pretty cool project called cloc. Cloc stands for count lines of code and it allows you to do just that. You can get some stats on how many files, lines of codes, blank lines and comments and have that broken down by language. I also want to note that the documentation for this project is really good. This is a really cool project and I hope you check out it.
https://github.com/AlDanial/cloc
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This is an introduction to Grails 3.0. This is the newest version of the framework that was just released days ago. In this tutorial we will look at the new features of 3.0 from a high level. We will also provide you with some great links so you can get started with 3.0 today. This hopes to be the start of a series dedicated to the Grails Framework version 3.0. If there are features you would like us to discuss please let us know in the comments below and please support this channel by subscribing. Thank You!
My Website:
http://therealdanvega.com
Grails 3.0 & The Road Ahead:
http://grails.io/post/115110650393/grails-3-0-released-and-the-road-ahead
Grails Website:
https://grails.org/index.html
Grails Documentation:
https://grails.org/single-page-documentation.html
Spring Boot:
http://projects.spring.io/spring-boot
Gradle:
http://gradle.org

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Are you interested in building Spring Boot + Angular 2 applications? In this tutorial, we are going to look at a sample application that uses both. We will have all of the source code for this on a single project and I will show you how to develop, run and build this project.
Links:
https://projects.spring.io/spring-boot/
https://angularjs.org/
https://cli.angular.io/
https://github.com/cfaddict/spring-angular2-tasks
http://therealdanvega.com/jhipster
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In this tutorial, we are going to look at a question from a student in my introduction to Spring Boot course. The question was how can we add aggregate functions to our queries in our spring data repositories. The answer is you can do so pretty easily using the @Query annotation and writing your SQL or JQL.
Source Code:
https://github.com/cfaddict/queryagg
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In this tutorial we are going to look at how to show keystrokes in ScreenFlow. ScreenFlow is my favorite application for recording screencasts on Mac OS X. There are many times where you want to show the user what you are typing or display a shortcut. Using this awesome feature in ScreenFlow we can show the keystrokes we are typing to the user.
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In this tutorial, we will show off a quick tip on how to create multiple request mappings for a controller method in Spring Boot.
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I have had a few students have an issue where they couldn't figure out why their tables weren't getting created. In this tutorial we are going to create a project from scratch and walk through the problem. We are going to create an Entity and show why the table wouldn't have been created in the database. We will then understand why and look at 2 different solutions to this problem.
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This is part 6 of a 6 part series of videos that will teach you how to create a CRUD (Create / Read / Update / Delete) application in Spring MVC using Spring Boot. In this tutorial we are going to look at deleting a record. If you like these tutorials please consider signing up for my Introduction to Spring Boot using the link above.
Source Code: https://github.com/cfaddict/spring-boot-intro/tree/master/crud
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This is a lesson from my new course "Angular 4 Java Developers". I am sharing an entire section with you and all of these lessons will be in a playlist for you to follow along.
In this lesson, I want to talk about the tasks application that we are building here. I want students to get a real feel for what it takes to build an application from scratch. This is going to be a very simple todo application but it will show the steps it takes to create an application and wire everything together.
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Have you ever run into a situation where you were asking the Spring Framework to autowire a dependency but there was more than one bean candidate available for injection?
If so you're not alone. I had a student in my Spring Boot Introduction course recently ask me a question about this. I thought this would be a great time to show a demo of the problem and the solution.
If you're using the Spring Framework and you try to autowire a bean it will work as long as there is only 1 bean of that type. In this case, the student was asking what happens in the scenario when there is more than 1 bean that could fit that type. This often happens when you use an interface as the type and have multiple beans that implement that interface.
@Qualifier Annotation
https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/beans/factory/annotation/Qualifier.html
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In this tutorial we are going to start diving into some of the features of the WordPress Administrator. We are going to learn all about the Jetpack plugin, how to connect to it and install it and how to use it. We will look at a few of the features and how to use them.
The Jetpack plugin is a must for anyone getting started with WordPress and it couldn't be easier to use. If you would like to find out more about it you can at https://jetpack.com/about/
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The Spring CLI (Command Line Interface) is a wonderful tool for interacting with Spring Boot projects. In this tutorial, we will learn how to install it on Windows and how to use it.
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Spring Boot includes a number of additional features to help you monitor and manage your application when it’s pushed to production. You can choose to manage and monitor your application using HTTP endpoints, with JMX or even by a remote shell (SSH or Telnet). Auditing, health and metrics gathering can be automatically applied to your application.
Actuator Docs:
https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#production-ready
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In this tutorial we are going to look at how to create scheduled tasks in Spring Boot.
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